Material holding dump vehicle



y 6, 1961 o. G. WADE 2,984,370

MATERIAL HOLDING DUMP VEHICLE Filed Dec. 7, 1959 5 Sheets-Sheet 1 INVENTORI 05 CA 1-? 6. WA DE A TTORNE Y May 16, 1961 o. G. WADE MATERIAL HOLDING DUMP VEHICLE 5 Sheets-Sheet 2 Filed Dec. 7, 1959 M RA mw ma R m4 A T TOR/V5 Y May 16, 1961 o. e. WADE MATERIAL HOLDING DUMP VEHICLE 5 Sheets-Sheet 3 Filed Dec. '7, 1959 IN VEN TOR. 050A I? 6. WA DE A TTORNEY May 16, 1961 o. G. WADE 2,984,370

MATERIAL HOLDING DUMP VEHICLE Filed Dec. '7, 1959 5 Sheets-Sheet 4 IN V EN TOR. 0804 R 6. WA DE ATTORNEY May 16, 196] O G WADE 2,984,370

MATERIAL HOLDING DUMP VEHICLE Filed Dec. 7, 1959 5 Sheets-Sheet 5 w s U ATTORNEY United States Patent MATERIAL HOLDING DUMP VEHICLE Oscar G. Wade, 95 E. San Miguel Drive, Chula Vista, Calif., assignor of one-half to Alice Irene Wade and one:half to Marion Ann Wade, both of Chula Vista,

Filed Dec. 7, 1959, Ser. No. 857,818

13 Claims. (Cl. 214-82) The present invention relates to a material holding dump vehicle, and more particularly to a refuse collection vehicle which includes an elongated refuse collection receptacle having packer means operable within the receptacle for compacting the refuse.

According to the present invention, a refuse collection vehicle is provided for accepting refuse in a simple and convenient manner, compacting that refuse to permit a greater volume of refuse to be handled and thereby increase the vehicle capacity, and which includes novel means for coupling the packer means with the vehicle chassis to facilitate unloading of the compacted refuse.

A refuse collection receptacle is supported by th vehicle chassis, and is pivotally mounted adjacent the rear end of the chassis so that the receptacle may be tilted rearwardly to dump the refuse. The receptacle includes apair of elongated packer compartments for receiving the refuse. Packer means are arranged within each of these compartments for longitudinal slidable movement, and refuse loaded into the forward end of each pack-er compartment is received rearwardly of the packer means whereby rearward movement of the packer means moves the trash and refuse into the interior of the receptacle proper.

An important feature of the present invention is the provision of means for coupling the packer means to the vehicle chassis at a point forwardly of the point of pivotal attachment of the receptacle to the vehicle chassis. With this arrangement, when the vehicle chassis and packer means are connected together, rearward movement of the packer means will tilt the receptacle upwardly and backwarclly. In this way the refuse may be dumped out of the rear end of the receptacle simultaneously with rearward movement of the packer means whereby the packer means assists in ejecting the refuse. The usual refuse collection vehicle of the prior art include separate means to accomplish these two functions of packing and dumping, whereas the present invention obviously does not require this.

The present packer means conveniently takes the form of a vertically disposed blade which is constructed in a manner minimizing deflection of the blade during its operation. This necessarily rigid blade is, however, provided with edge sections of relatively yieldable material, such as soft aluminum. These edge portions may be easily removed in the event that they become damaged through the handling of heavy objects and the like, and in this way replacement of the large, relatively expensive packer blade is avoided.

In addition, the present invention provides dual packer compartments which are independently operable for compacting the refuse therein. Thus, while one packer means is occupied in a compacting operation, the other packer. compartment may be loaded. With this provision oftwo. packer compartments, it will be' apparent that the loading of refuse in the present refuse collection vehicle-is sub-- stantially continuous. In one embodiment of the present invention each packer means is operated by a separate.

hydraulic cylinder, and in another embodiment both packer means are selectively operable by one hydraulic cylinder.

Each packer blade of the present invention is secured to a vertically disposed member which is carried through an elongated slot in the bottom wall or floor of the receptacle. Since such an elongated slot would ordinarily introduce structural weaknesses in the receptacle, in that it would render the receptacle more susceptible to lateral deflection under the high compacting pressures developed by the packer blade, in the present invention the vertical element with which the blade abuts and is secured is connected at its upper portion between plates whose lower edges define a downwardly open channel. This downwardly open channel receives the upwardly projecting flanges of L-shaped components which are fitted upwardly through the floor slot in spaced relationship and secured to the underside of the receptacle. Thus, as the vertical element moves down the slot carrying the packer blade, the slot is prevented from Widening by the restraint resulting from the interfitted relationship of the downwardly open channel portion with the upwardly projecting flanges which are arranged along the length of the slot.

The present refuse collection vehicle also provides tracks or ways which are made an integral part of the in terior side walls and floor of each packer compartment, and these ways interfit with mating openings formed in the side and bottom edgess of the packer plates whereby at each position of their longitudinal travel the packer blades are constrained against undesirable lateral and vertical movement.

It is also a feature of the present invention that each vertical member to which a packer blade is secured is inwardly formed or offset underneath the receptacle to thereby clear the wheels of the vehicle. This aflords a means for moving the packer blades of a comparatively wide receptacle extending laterally over and beyond the wheels of the vehicle. This offset portion at the lower end of each vertical blade-carrying member is prevented from cocking laterally by connection thereof to elongated channel members which are slidably carried within mating channel members secured to the underside of the receptacle.

On refuse collection vehicles there is usually a considerable lateral overhang of the receptacle beyond the vehicle chassis, and this relatively unsupported weight must be borne in a manner which will minimize undesirable deflection of the walls and floor of the receptacle. In the present vehicle a plurality of strut members are carried from a point near the top of the receptacle diagonally downwardly to the receptacle frame, and this results in a suspension of the overhang from the top of the receptacle. The struts are in tension and relieve the receptacle walls and floor of the greater portion of the bending forces which would otherwise be present.

Other objects and features of the present invention will be readily apparent to those skilled in the art from the following specification and appended drawings wherein is illustrated a preferred form of the invention, and in which:

Figure 1 is a side elevational View of a refuse collection vehicle according to the present invention, portions thereof being broken away for clarity, and other portions being shown in cross section;

Figure 2 is a side elevational view similar to Figure 1, but showing the receptacle in its tilted or dumping position;

Figure 3 is a cross sectional view taken along. lines 33 of Figure l;

Figure 4 is a perspective view of portions: of the recep-.. tacle frame and-vehicle chassisofanother embodiment of the present invention, particularly illustrating the means for tilting the receptacle;

Figure 5 is a partial detail perspective view of the coupling carriage of the tilting means illustrated in Figure 4;

Figure 6 is a detail side elevational view of the apparatus for coupling the coupling carriage of Figure 4 with a packer blade; and

Figure 7 is a view taken along line 77 of Figure 6.

The refuse collection vehicle according to the present invention includes a vehicle chassis 10 which serves to support a dump body or receptacle 12 which is pivotally mounted adjacent its rearward end to chassis 10.

Chassis 10 is constructed in substantially conventional fashion, and comprises a pair of spaced apart and longitudinally extending side channels 14 to which are secured at spaced intervals a plurality of laterally disposed channel members 16, one of which is shown in Figure 3. This arrangement provides a rigid, rectangular support ing structure to which are secured usual forward and rear wheels 18 and 20, respectively. Rear wheels 20 are carried by a pair of springs 22 in conventional fashion.

The construction of chassis 10 departs from the conventional in the provision of an open cab 24 at its forward end. Unlike cabs of other such vehicles of the prior art, cab 24 is open for accessibility to permit its operator to serve both as a driver and as a refuse loader for receptacle 12, as will be seen. Cab 24 is built as close to the ground as possible to make it easier to lift refuse barrels onto the cab for emptying into receptacle 12. A windshield 26 is pivotally secured to cab 24 so that it may be swung out of the way during loading operations, as illustrated in Figure l.

A pair of short, upwardly and rearwardly extending support arms 28, only one of which is shown in Figure l, are rigidly secured to the rearwardly located lateral channel member 16 of chassis 10, and are pivotally connected to receptacle 12 to permit receptacle 12 to be pivoted upwardly and rearwardly into the dumping position illus trated in Figure 2. The particular means for effecting this pivotal movement of receptacle 12 will be described later.

Receptacle 12 is an elongated hollow body formed by a pair of longitudinally extending side walls 30 and 32, a flat bottom wall 34, a top wall 36, and a rearward end wall or door 38. At the forward end of receptacle 12 a pair of parallel, spaced apart, and vertically disposed walls 40 are secured at their upper edges to top wall 36 and extend laterally between side walls 30 and 32 to which their side edges are secured. Walls 40 extend downwardly a short distance from wall 36 and the rearward wall 40 is welded at its bottom edge to the upper edge of a wall 42 which extends diagonally rearwardly.

With this arrangement it will be seen that the upper portion of receptacle 12 is divided into two portions by walls 40 and 42, the rearward portion being closed to form a reservoir for refuse and the forward portion being open forwardly for loading refuse, as will be seen.

In the lower forward portion of receptacle 12 is located the pair of packer compartments, the top of these compartments being formed by a horizontally disposed packer compartment upper wall 44 which is connected to side walls 30 and 32, and which extends forwardly from approximately the middle of receptacle 12 to the front of receptacle 12. The lower edge of diagonal wall 42 is welded to the upper horizontal surface of wall 44 Just forward of wall 42, wall 44 is divided into two sections, forming a pair of covers or doors 50 which are hinged at 48. Doors 50 are laterally spaced apart, and wall 44 forward of wall 42 is slotted to accommodate a pair of vertical walls or dividers 46. These vertical dividers 46 are welded to wall 44 and floor 34 and serve to divide the space beneath wall 44 and doors 50 into the pair of packer compartments. In addition, the pair of dividers 46 are slightly spaced apart to provide space for reinforcing struts, as will be described.

Dividers 46 also extend upwardly in an apex to divide the loading area above doors 50 into two portions, one for each packer compartment, and this apex portion of each divider 46 is secured in position by welding to the adjoining inner surface of diagonal wall 42. The pair of doors or covers 50 afford a means of access to the two packer compartments for the dumping of refuse therein.

The forward end of the packer compartments is closed by a laterally disposed wall 52 which is secured to floor 34 and to side walls 30 and 32. Wall 52 limits forward travel of the packer means, as will be seen, and includes an integral shelf section 54 for supporting the forward edges of doors 50 in their lowered or'closed positions.

The forward edges of doors 50 are connected to a pair of cables 56 Figures 2 and 3, which are trained about a pair of pulleys 58 rotatably carried by the forward one of walls 40. Cables 56 extend laterally outwardly from pulleys 58, through openings 60 in side walls 30 and 32, and into counterbalance mechanisms 62 secured to side walls 30 and 32. Such mechanisms 62 are well known in the art and will therefore not be described in detail, it being important only to note that such mechanisms 62 operate to maintain a weight, such as the weight of a door 50, in any position of elevation. In this manner the weight of each door 50 is counterbalanced by a separate mechanism 62, making it easier for the operator to manipulate doors 50.

An important feature of the present invention is the manner of supporting those portions of receptacle 12 which are cantilevered and extend laterally beyond the main supporting frame of receptacle 12. This frame of receptacle 12 comprises, Figure 3, a pair of spaced apart, longitudinally extending channels 64 which are secured to the under surface of bottom wall 34 and arranged with their channels opening outwardly. These channels are connected together by a plurality of laterally disposed I- beams 66, 68 and 70, Figures 1 and 3, to provide a rigid main supporting frame for receptacle 12.

The lateral overhand of receptacle 12 beyond channels 64 is supported by suspending these overhanging portions from struts which are connected to the over hanging portions, carried through to the center of receptacle 12, and thence connected to the I-beam members 68 and 70. More particularly, a diagonally disposed strut 72 extends through bottom wall 34 and is welded at its lower end to I-beam 68. Strut 72 extends upwardly and forwardly between dividers 46, and is welded to dividers 46 for bracing them in position. The upper end of diagonal strut 72 is welded to the lower end of a similar but vertically disposed strut 74 which is welded to top wall 36. In addition, another diagonal strut 76 is welded at its upper end to the lower end of vertical strut 74, and extends diagonally downwardly and forwardly between dividers 46 through an opening in bottom wall 34, where its lower end is welded to I-beam 70.

A pair of horizontal struts 78, Figure 3, are welded at their inner ends to the lower end of strut 74 and at their outer ends to side walls 30 and 32, and another pair of diagonal struts are welded at their upper ends to the upper end of strut 74 and are welded at their lower ends to the outer ends of the pair of struts 78.

With this construction it will be seen that the weight of the overhanging portions of receptacle 12 will be transferred through side walls 30 and 32 to struts 8t}. Struts 80 will be placed in tension, and in turn place struts 78 in compression, both struts 78 and 8t transferring their loads to strut 74 which carries the loads down through diagonal struts 72 and 76 to the I-beams 68 and 70 of the receptacle frame. The arrangement of struts just described provides great strength with a minimum weight penalty, and occupies comparatively little of the interior space within receptacle 12. Further, the sides of receptacle 12 are reinforced to help transfer these loads and also to resist against outward bulging under internal loads.

Thisereinforcement takes the form of a pluralityof longi tudinally. spaced, channels 82 which are welded to the outer sides of walls 30 and 32.

To prevent undesirable entry of refuse and trash between dividers 46, a section of plating 83 is welded to the diagonal forward edges of dividers 46 and a section of plating. 84 is welded to the forward, horizontal edges of dividers 46.

A pair of packer means 86 are mounted for slidable movement within each of the packer compartments formed by horizontal. wall 44, dividers 46, side walls 30 and. 32, and bottom wall 34. Each of these packers means 86 comprises a heavy rectangular packer plate 88 which extends laterally between a divider 46 and one of the side walls 30 and 32, and extends vertically between bottom wall 34 and wall 44;

I Plate: 88 is preferably made of rigid plate steel with its. outer edges formed by four sections 90 made of relatively soft, yieldable material such as aluminum. These sections 90 are removably secured to the edges of the steel plate by bolt and nut assemblies 92 to permit sections. 90 to be easily removed if they become damaged. In this way damage to the larger, more expensive plate 88 by objects lodged between a packer means 86 and the, adjacent walls is avoided since such damage will ordinarily first occur to the removable sections 90. In addition, packer. plate 88 is reinforced against bending by a plurality of angles 94 which are welded to plate 88 andextend laterally across the plate.

Coming now to a description of the apparatus by which each packer means 86 is moved reciprocally within the packer compartments, a vertical plate 96 is welded at right angles totherearward or packer face of plate 88 alongthevertical center line of plate 88. Plate 96 is secured. at its bottom edge to a fitting 98 by a plurality of bolts 99. which are disposed through a pair of plates 100 arranged on either side of plate 96, through fitting 98, and. through a pair of spacer. elements 102 arranged between plate 96 and plates 100. It is noted that the lower portions of plates 100 form a downwardly open channel in alignment with a longitudinally extending slot 104 provided-in bottom wall 34.

A slot 104 for each packer means 86 extends along the longitudinal center line of eachpacker compartment from one end thereof to the other. Within and coextensive with. each slot 104 are arranged the upwardly disposed legs of a pair of angles 106, the laterally extending legs of angles 106 being welded to the underside of bottom wall 34. Each pair of angles 106 are spaced apart so as to slidably accommodate the upper portion of a fitting 98 between them.

Longitudinal movement. of each fitting 98 causes plate 96iand7hence. packer means 86, to move longitudinally within its packer compartment, and during this longitudinal movement the downwardly open channel formed by plates 100 closely fits over the upwardly projecting legs of angles 106, guiding plates 100 along slot 104. In addition, plates 100 serve to constrain angles 106 from moving, apart under the high compacting pressure within the packer compartment. That is, the structural weakness which slot 104 would otherwise introduce is cured by the action of plates 100 in keeping slot 104 from widening.v

Receptacle 12 is raised end and lowered by means of apair of hydraulic rams 108 arranged along the undersid'epofreceptacle 12 and secured thereto in any suitable fashion. Eachram108 includes the usual longitudinally extending. cylinder 110 within which is carried a piston 112. The details of. the hydraulic pump and control mechanism for effecting movement of piston 112 within cylinder. 110 arewell known in theart and will not be described inasmuch as any usual and conventional means may beemployed;

Hydraulic fluid introduced through a line 114 causes. piston 11210. be: moved to the left, as viewed in Figures 1 and 2, and fluid introduced through aline. 116 causes piston 112 to be moved to the right. The right end of the rod of each piston 112 is secured to a transverse plate 118 which is welded at its edges to a channel 120. Each of the pair of channels 120 is arranged with the open side of the channel disposed inwardly, and the web of each channel 120'is rigidly secured by bolts 122 to a fitting 98. The channels 120 are slidably carried within channels 64, and as pistons 112 are moved forwardly and rearwardly, channels 120 are moved forwardly and rearwardly within channel 64. This movement of channels 120 causes movement of fittings 98 and the pair of packer means 86. Thus it will be seen that introduction of hydraulic fluid into one or both of cylinders effects movementof one or both of the pairof packer means 86.

In operation, a door 50 of one of the packer compartments is raised and refuse is dumped within the packer compartment, the packer means 86 for that compartment being in the position illustrated in Figure 1. Door 50 is closed, and control means (not shown) are actuated to introduce hydraulic fluid through line 114 into cylinder 110. This causes packer means 86 to be moved to the left, urging the refuse into the main interior portion of receptacle 12. A swinging retarder door 124, which is pivotally carried by upper wall 44 of the packer compartment, permits the refuse to be pushed rearwardly of it, but swings forwardly to the position shown in full line in Figure 1 to prevent the refuse from re-entering the forward portion of the packer compartment.

The cycle of loading and compacting the refuse is repeated until the interior of receptacle 12 is packed full of refuse, it being noted that the refuse will pile up and gradually work upwardly and forwardly to also fill the space adjacent diagonal Wall 42.

It is noted that the packer compartments may be loaded and operated alternately so that one of the packer means 86 can be engaged in a compacting operation while the other packer compartment is being loaded, each of the packer means 86 moving its load of refuse into the common hollow interior within receptacle 12. When receptacle 12 is completely filled with refuse, end wall or door 38 at the rearward end of receptacle 12 can be opened to permit the refuse to be dumped from receptacle 12.

To facilitate the dumping of refuse from receptacle 12, the present refuse collection vehicle is adapted to effect a rearward tipping of receptacle 12. It is a novel feature of the present invention that the same hydraulic rams 108 used for moving packer means 86 forwardly and rearwardly are also utilized to effect the desired rearward tipping of receptacle 12.

More particularly, a pair of rigid lift arms 128 are carried at either side of vehicle 12, the left end of each lifting, arm 128 being pivotally carried by a depending support 130. which is welded to a channel 14 of the frame of chassis 10. The forward end of each arm 128 is formed with a socket portion 132 which is adapted to mate with a shaft 134 which is suitably welded to a fitting 98. Each shaft 134 includes an enlarged diameter outer portion 136 to prevent notch 132 from sliding outwardly and disengaging shaft 134.

Lifting arms 128 normally rest in a position where they cannot engage shafts 134, as shown in dotted outline in Figure 1. A pushing element for each arm 128 is rotatably carried by side channels. 14 of vehicle chassis 10, and serve to support arms 128 in its lower position, as shown in dotted outline in Figure l, and in its raised position, as shown in full line in Figure 1. To raise an arm 128 to a position where it will engage a shaft 134, one of the arms 136 is grasped and rotated to cause the other arm136 to bear against and raise arm 128.

Thus, when it is desired to tip vehicle 12, arms 128 are raised to a position where they will engage shafts 134 when packer means 86 are urged rearwardly by pistons 112., When engagement of arms 128 with, shafts 134 occurs, continued. rearward movement of the pair of packer means 86 causes receptacle 12 to assume the dumping. position illustrated in Figure 2.

, Another embodiment of the present invention is illustrated in Figures 4 through 7, this embodiment being particularly useful in the case of a refuse trailer which is towed by a separate tractor. Such a trailer will have no central drive shaft, power being provided by the tractor, and the space normally occupied by the drive shaft is then occupied by a single lift ram 138, Figure 4. As will be seen, this lift ram 138 is adapted to effect a raising or tipping of receptacle 12 to effect the dumping of refuse from receptacle 12.

Since the trailer is constructed in substantially the same manner as receptacle 12 of the embodiment above described, only those portions of the trailer which are differ- 'ent will be described.

" Figure 4 illustrates the previously described arrangement of chassis with side channels 14, one of the lateral members 16 also being illustrated. The frame of receptacle 12 is disposed above vehicle chassis 10, resting upon four plates 140 (two of which are illustrated in Figure 4) which are welded at the four corners of chassis 10. The upper portion of receptacle 12 is welded to side channels 64, as before, and a plurality of I-beams, such as I-beams 66 and 68 are laterally arranged between side channels 64.

The apparatus for moving packer means 86 forwardly and rearwardly will next be described. A packer drive carriage 142 is arranged to slide forwardly and rearwardly along side channels 64 of receptacle 12, and, as will be seen this carriage 142 is selectively engageable with one or the other of packer means 86 to effect their movement.

. Carriage 142 comprises a flat horizontal plate 144 which is slidably arranged at its sides between the confronting surfaces of side channels 14 and side channels 64, the provision of plates 140' affording clearance between these channels for the slidable movement of carriage 142. The material of plate 144 is formed at its rearward edge into a pair of upwardly open integral channels 146, these channels 146 being each disposed with their web portion beneath the lower leg of a side channel 64, and with their outside leg welded to the web of a channel 147 and their inner leg being disposed inwardly of the web of a channel 64. With this construction, as best viewed in Figure 5, channels 147 are secured to channels 146, and channels 147 are longitudinally slidable against the exterior of channels 64. Thus, carriage 142 is guided by channels 64 during reciprocable longitudinal movement of carriage 142.

' Reciprocable longitudinal movement of carriage 142 is effected by a ram 148 which is secured to I-beams 66 and 68, and the piston rod 150 of ram 48 is rigidly secured to a fitting 152 bolted to the upper surface of plate 144. Ram 148 is of usual construction, and introduction of hydraulic fluid to one or the other side of the piston thereof effects movement of carriage 142.

To the inner side of the lower leg of each channel 147 is secured a hook 149, Figure 5, and each of these hooks 149 is engageable with the hooked end 151 of arm 153, Figures 6 and 7, which is pivotally carried by a channel 120:: for each channel 64 is secured to a fitting 98 by bolts 122 in the manner previously described in connection with the first embodiment. Thus, as carriage 142 moves upwardly, hooks 149 will move into a position where they will be engaged by the hook ends 151 of arms 153. However, arms 153 will not engage hooks 149 when arms 153 are in the position illustrated in Figure 6 since a pair of depressors 154 maintain hook ends 151 in raised position by reason of the engagement of depressors 154 with rearward extensions 156 of arms 153. When depressors 154 are in their upward position, as will be described, book ends 151 will engage with hooks 149, and rearward movement of carriage 142 will pull fittings 98, and consequently the vertical plates 96 of packer means 86 rearwardly.

During this rearward movement, channels a will slide within channels 64, as seen in Figure 7. It is noted that one or the other of arms 153 are selectively engageable with one or the other of hooks 149 whereby one. or both of the packer means 86 may be actuated.

Each depressor 154 is secured to the lower end of a rod 158 which is slidable within a pair of sleeves 160 secured to forward wall 52. A compression spring 162 is disposed about rod 158 and exerts its bias at its lower end against a ring 164, and at its upper end against the upper sleeve 160. The upper end of rod 158 is pivotally secured to an arm 166 of an element 168 which is pivotally sc cured to forward wall 52. Another arm 170 of element 168 is pivotally secured to a short rod 172 which is held in position by a sleeve 173 secured to wall 52. When door 50 is closed after refuse has been loaded into the packer compartment, its edge will depress the upper end of rod 172, pivoting element 168 and raising depressor 154' against the bias of spring 162. When door 50 is raised, the bias of spring 162 will act upon ring 164 to lower depressor 154. Thus, whenever the operator of the pres ent refuse vehicle has completed the loading of a packer compartment he merely has to lower door 50 to close the packer compartment, and arm 153 is then in position to engage a hook 149 when carriage 142 moves forwardly on its next cycle. Thereafter, when ram 148 is actuated to move carriage 142 rearwardly, the engagement of hook 149 and arm 153 will effect rearwardly, compacting movement of packer means 86. As will be apparent, the packet means 86 of both compartments will be operated if both doors 50 are in their lowered position.

When it is desired to dump the refuse from receptacle 12, ram 138 is operated. More specifically, ram 138 is pivotally mounted on a shaft 174 which is carried between support arms 130 which are welded to vehicle chassis 10. Ram 138 includes the usual piston (not shown) connected to a piston rod 176, and piston rod 176 is in turn connected to a forked member having a pair of arms 178 which each include a socket portion 180. Each of these socket portions 180 is engageable with a shaft 134a which is suitably secured to one of the channels 146. Arms 178 are raised to align the socket portions 180 thereof with shafts 134a so that as carriage 142 is moved rearwardly sockets 180 will engage shafts 134a and tip receptacle 12 upwardly. At this time hydraulic fluid is introduced into ram 138 to assist in tipping receptacle 12, and the continuing rearward movement of carriage 142 causes refuse in receptacle 12 to be ejected out of the end wall or rear door 38, Figure 1. In this manner a single integral combination of arms 178 and ram 138 is substituted for the pair of arms 128 of the first embodiment, and ram 138 permits the handling of a receptacle 12 having a much greater length and capacity for refuse than the receptacle 12 of the first embodiment 12.

While certain preferred embodiments of the invention have been specifically disclosed, it is understood that the invention is not limited thereto as many variations will be readily apparent to those skilled in the art and the invention is to be given its broadest possible interpretation within the terms of the following claims.

I claim:

1. A refuse collection vehicle comprising a vehicle chassis; an elongated refuse collection receptacle supported by and pivotally mounted adjacent the rear end of said vehicle chassis; means forming an elongated packer compartment in communication with said receptacle; packer means slidably movable within said packer compartment to move refuse into said receptacle; means for coupling said packer means to said vehicle chassis forwardly of the point of pivotal attachment of said receptacle to said vehicle chassis whereby slidable movement of said packer means effects pivotal movement of said receptacle; and means for slidably moving said packer means.

2. A refuse collection vehicle according to claim 1- 9. in which said means for coupling said packermeans to said vehicle chassis comprises an elongated bar pivotally mounted-to said vehicle chassis at one end and engageable with said packer means at the other end.

3. A refuse collection vehicle comprising a vehicle chassis; an elongated refuse collection receptacle supported by and pivotally mounted adjacent therear end of said vehicle chassis; Walls cooperating withsaid receptacle to form a pair of elongated packer compartments in said receptacle, the rearward ends of said compartments being open and in communication with the interior of said receptacle; a pair of packer means slidably movable within said pair of compartments, respectively, to move'refuse into said receptacle; means for coupling atleast one of said packer means to said vehicle chassis forwardly of the point of pivotal attachment of said receptacle to said vehicle chassis whereby slidable movement of said packer means effects pivotal movement of said receptacle; and a pair of means for slidably moving said packer means, respectively.

4. A dump type refuse collection vehicle comprising a-vehicle chassis; an elongated refuse collection receptacle supported by and pivotally mounted adjacent the rear end of said vehicle chassis, said receptacle having top, bottom, and end walls with an opening in the forward end wall for the reception of refuse and an opening in the rearward end wall for the ejection of refuse; walls cooperating with said receptacle to form an elongated packer compartment, the rearward end of said packer compartment being open and in communication with the interior of said receptacle, the forward end of said packer compartment including means pivotable to afford communication between said packer compartment and the opening in the forward end wall of said receptacle; packer means slidably movable within said packer compartment for urging refuse into the interior of said receptacle; an elongated element pivotably carried at its rearward end to said vehicle chassis forwardly of the point of pivotal attachment of said receptacle to said vehicle chassis, and connectible at its forward end to said packer means whereby rearward slidable movement of said packer means effects upward pivotal dumping movement of said receptacle simultaneously with rearward urging of refuse by said packer means; and means for slidably moving said packer means.

5. A dump type refuse collection vehicle comprisinga vehicle: chassis; an elongated refuse collection receptacle supported by and pivotally mounted adjacent the rearend of said vehicle chassis, said receptacle having top, bottom, and end walls with an opening in the rearward end wallfor the ejection of refuse; means forming an elongated packer compartment, the rearward end of said packer compartment being open and in communication with the interior of said receptacle, the forward end of said packer compartment including means pivotable to provide an opening through which refuse may be deposited in said packer compartment; packer means slidably movable within said packer compartment for urging refuse into the interior of said receptacle; an elongated element pivotably carried at its rearward end to said vehicle chassis forwardly of the point of pivotal attachment of said receptacle to said vehicle chassis, and connectible at its forward end to said packer means whereby rearward slidable movement of said packer means effects upward pivotal dumping movement of said receptacle simultaneously with rearward urging of refuse by said packer means; and means for slidably moving said packer means.

6. A refuse collection vehicle comprising a vehicle chassis; an elongated refuse collection receptacle sup ported by and pivotally mounted adjacent the rear end of said vehicle chassis; walls cooperating with said receptacle to form a pair of elongated packer compartments in said receptacle, the rearward ends of said compartments being open and in communication with the interior of saidreceptacle; a pair of packer means slidably movable within said pair of compartments, respectively, to move refuse into said receptacle; means for coupling at least one of said packer means to said vehicle chassis forwardly of the point of pivotal attachment of said receptacle to said vehicle chassis whereby slidable movement of saidpacker means effects pivotal movement of said receptacle; means for slidably moving said pair of packer means; and coupling means operative to selectively connect said last-mentioned means with at least one of said pair of packer means for slidably moving said one of said packer means.

7. A material holding dump vehicle comprising a vehicle chassis; an elongated material holding receptacle supported. by and pivotally mounted adjacent the rear end of saidvehicle chassis; means slidably movable within said receptacleto move material toward the rear end of said receptacle; means for coupling said first-mentioned means to said vehicle chassis forwardly of. the point of pivotal attachment of said receptacle to said vehicle chassis whereby slidable movement of said first-mentioned means effects pivotal movement of said receptacle; and means for slidably moving said first-mentioned means.

8. A dump type refuse collection vehicle comprising: a vehicle chassis; an elongated refuse collection receptacle supported by and pivotally mounted adjacent the rear end of said vehicle chassis, said receptacle having top, bottom, and end walls, refuse being ejectable through an opening in the rearward end wall of said receptacle, said bottom wall including an elongated. slot. therethrough; a pair of brackets secured to said bottom wall and each including an elongated leg extending upwardly, the legs of said brackets being arranged in opposed, spaced apart relationship to define a track therebetween coextensive with said slot, means forming an elongated packer compartment, the rearward end of said packer compartment being open and in communication with the interior of said receptacle, the forward end portion of said packer compartment including an opening at the top for the receipt of refuse; a cover mounted to said recep tacle and movable to cover and uncover the opening in the forward end of said packer compartment; a transversely disposed packer blade slidably movable within said packer compartment for urging refuse into the interior of said receptacle; a vertically disposed plate secured to said packer blade, extending rearwardly, and includinga lower portion; a vertically disposed member projecting through said track and extending above and below the legs of said brackets, said member being longitudinally slidable, in said slot and said track; a pair of plateelements secured to the lower edge: of said vertically disposed plate and to the upper portion of said vertically disposed member to secure together said plate and said member, said plate elements being spaced apart and slidably. cngageable with those sides of said legs located outwardly of said track whereby said plate elementsconstrain said legs against spreading apart in the area of slidable engagement therebetween; an elongated elementameans;pivotably connecting the rearward end of said elongated element to said vehicle chassis forwardly of the point of pivotal attachment of said receptacle to said vehicle chassis; means for connecting the forward end of said elongated element to the lower portion of said vertically disposed member whereby rearward slidable movement of said packer blade effects upward pivotal dumping movement of said receptaclesimultaneously with rearward urging of refuse by said packer blade; and means for slidably moving said packer blade.

9. A dump type refuse collection vehicle according to claim 8 and characterized in that said last-mentioned means comprises an elongated hydraulic cylinder-piston assembly carried at one end by said receptacle, and further characterized to include means connecting the other end of said assembly to said lower portion of said vertically disposed member.

10. A dump type refuse collection vehicle comprising: a vehicle chassis; an elongated refuse collection receptacle supported by and pivotally mounted adjacent the rear end of said vehicle chassis, said receptacle having top, bottom, and end walls, refuse being ejectable through an opening in the rearward end wall of said receptacle, said bottom wall including an elongated slot therethrough, said receptacle further including an elongated channel element secured to the underside of said bottom wall; means forming an elongated packer compartment, the rearward end of said packer compartment being open and in communication with the interior of said receptacle, the forward end portion of said packer compartment including an opening at the top for the receipt of refuse; a cover mounted to said receptacle and movable to cover and uncover the opening in the forward end of said packer compartment; a transversely disposed packer blade slidably movable within said packer compartment for urging refuse into the interior of said receptacle; a vertically disposed plate secured to said packer blade, extending rearwardly, and including a lower portion; a member longitudinally slidably carried within the channel of said lower portion of said packer blade to said member; an elongated element; means pivotally connecting the rearward end of said elongated element to said vehicle chassis forwardly of the point of pivotal attachment of said receptacle to said vehicle chassis; means for connecting the forward end of said elongated element to said member whereby rearward slidable movement of said packer blade effects upward pivotal dumping movement of said receptacle simultaneously with rearward urging of refuse by said packer blade; and means for slidably moving said member whereby said packer blade is slidably moved.

11. A dump type refuse collection vehicle according to claim wherein said packer blade includes a packer blade central portion and marginal plate elements made of material more yieldable than the material of said packer blade central portion, said plate elements being removably secured to said packer blade central portion and slidably engageable with the inner surfaces of said means forming said packer compartment whereby said plate elements are individually replaceable in the event of their deformation by relatively immovable items of refuse which become lodged between said blade elements and said inner surfaces.

12. A refuse collection vehicle comprising a vehicle chassis; an elongated refuse collection receptacle supported by and pivotally mounted adjacent the rear end of said vehicle chassis, said receptacle including a pair of elongated elements, each of which is formed to define an elongated track; walls cooperating with said receptacle to form a pair of elongated packer compartments in adjacent relationship in said receptacle, the rearward ends of said compartments being open and in communication with the interior of said receptacle; a pair of packer means slidably movable within said pair of compartments, respectively, to move refuse into said receptacle; a pair of members slidable, respectively, in the tracks of said elongated elements; a pair of elongated arms pivotally connected to said members, respectively, the rearward end of each of said pair of arms being formed into a hook configuration; a pair of means connecting said pair of packer means to said pair of members, respectively; carriage means including side portions longitudinally slidable along said tracks, each of said side portions including a hook-shaped element; means for longitudinally slidably moving said carriage; and a pair of actuating means selectively operable to move at least one of said arms for engagement of the rearward end thereof with one of said hook-shaped elements whereby movement of said carriage effects movement of said one of said arms and, consequently, movement of the one of said pair of packer means associated with said one of said arms.

13. A refuse collection vehicle comprising a vehicle chassis; an elongated refuse collection receptacle supported by and pivotally mounted adjacent the rear end of said vehicle chassis, said receptacle including a pair of elongated elements, each of which is formed to define an elongated track; walls cooperating with said receptacle to form a pair of elongated packer compartments in adjacent relationship in said receptacle, the rearward ends of said compartments being open and in communication with the interior of said receptacle, the forward end portion of each said packer compartment including an opening at the top for the receipt of refuse; a pair of covers mounted to said receptacle and movable to cover and uncover the openings in the forward ends of said packer compartments, respectively; a pair of packer means slidably movable within said pair of compartments, respectively, to move refuse into said receptacle; a pair of members slidable, respectively, in the tracks of saidelongated elements; a pair of elongated arms pivotally connected to said members, respectively, the rearward end of each of said pair of arms being formed into a hook configuration; a pair of means connecting said pair of packer means to said pair of members, respectively; carriage means including side portions longitudinally slidable along said tracks, each of said side portions including a hook-shaped element; means for longitudinally slidably moving said carriage; and a pair of linkage means, each including an element movable to engage and move one of said arms for engagement of the'rearward end thereof with one of said hook-shaped elements whereby movement of said carriage effects movement of one of said pair of packer means, the elements of said pair of linkage means being moved to engage said arms by engagement with said covers, respectively, when said covers are moved to cover the openings in the forward end portions of said packer compartments.

References Cited in the file of this patent UNITED STATES PATENTS 2,750,055 Huffines June 12, 1956 

